CN205175826U - Marshall stability appearance - Google Patents
Marshall stability appearance Download PDFInfo
- Publication number
- CN205175826U CN205175826U CN201520996142.8U CN201520996142U CN205175826U CN 205175826 U CN205175826 U CN 205175826U CN 201520996142 U CN201520996142 U CN 201520996142U CN 205175826 U CN205175826 U CN 205175826U
- Authority
- CN
- China
- Prior art keywords
- upper bracket
- guide pillar
- undersetting
- protection ring
- marshall stability
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses a marshall stability appearance, include quick -witted case and install the lead screw that links to each other with actuating mechanism and be fixed in the stand on the quick -witted case on quick -witted case, install the crossbeam that the lower extreme has pressure sensor on the stand, be provided with the pressurization support that links to each other with the lead screw under the pressure sensor, the pressurization support includes upper bracket and the undersetting of installing displacement sensor, and the upper bracket is connected with the undersetting through the guide pillar of fixing on the undersetting, be provided with the slip protection ring between upper bracket and the guide pillar. Compared with the prior art, the utility model the removal of upper bracket is rolled on the guide pillar through the slip protection ring and is realized, with regard to like this the effectual friction that has reduced upper bracket and guide pillar to reduce experimental error, reduction equipment that also can be fine uses the wearing and tearing that cause because of long -time, simple structure not only, and the operational reliability is high, and long service life is effectual moreover.
Description
Technical field
The utility model relates to actual road test detecting instrument field, is specifically related to a kind of Marshall stability apparatus.
Background technology
Asphalt is the general name of the compound mixed and stirred by mineral aggregate and asphaltic binder, and it is widely used in field of road.Marshall stability apparatus is applied to determine degree of stability and the flow valuve of marshal piece in current China Bitumen Mix Design process, in experimentation, upper bracket is moved up by guide pillar under the drive of driving mechanism by undersetting, pressure transducer draws marshal piece stability value by measuring load application, and the displacement of displacement sensor upper bed-plate draws test specimen flow valuve.In traditional Marshall stability apparatus use procedure, because friction between upper bed-plate and cylindrical bar can produce wearing and tearing, the numerical value recorded to pressure transducer and displacement transducer brings error, and has an impact to test accuracy.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of friction that can effectively reduce between upper bracket and guide pillar, reduces experimental error, also can reduce the Marshall stability apparatus of equipment attrition.
For achieving the above object; the technical solution adopted in the utility model is: comprise cabinet and be installed on the screw mandrel that cabinet is connected with driving mechanism and the column be fixed on cabinet; column is provided with the crossbeam of lower end with pressure transducer; the pressurization bearing be connected with screw mandrel is provided with immediately below described pressure transducer; described pressurization bearing comprises the upper bracket and undersetting that are provided with displacement transducer; upper bracket is connected with undersetting by the guide pillar be fixed on undersetting, is provided with slip protection ring between described upper bracket and guide pillar.
Described displacement transducer is vertically installed on upper bracket by slip protection ring.
Described slip protection ring inside is provided with some steel balls.
Described cabinet is also provided with the controller be connected with driving mechanism.
Described guide pillar is right cylinder.
The movement of the utility model compared with prior art upper bracket rolls to realize by slip protection ring on guide pillar; so just effectively decrease the friction of upper bracket and guide pillar; thus reduction experimental error; also equipment can well be reduced because using the wearing and tearing caused for a long time; not only structure is simple; functional reliability is high, and long service life, effective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model slip protection ring.
Wherein, 1, crossbeam; 2, pressure transducer; 3, displacement transducer; 4, column; 5, guide pillar; 6, controller; 7, cabinet; 8, base; 9, upper bracket; 10, undersetting; 11, screw mandrel; 12, steel ball; 13, slip protection ring.
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present utility model and principle of work are described in further detail.
As shown in Figure 1, the utility model comprises the cabinet 7 with controller 6 be installed on base 8, cabinet 7 is provided with the screw mandrel 11 and column 4 that are connected with driving mechanism, its middle controller 6 is connected with driving mechanism, column 4 is provided with the crossbeam 1 of lower end with pressure transducer 2, the pressurization bearing be connected with screw mandrel 11 is provided with immediately below pressure transducer 2, described pressurization bearing comprises upper bracket 9 and undersetting 10, upper bracket 9 is connected with undersetting 10 by the right cylinder guide pillar 5 be fixed on undersetting 10, slip protection ring 13 is provided with between described upper bracket 9 and guide pillar 5, displacement transducer 3 is vertically installed on upper bracket 9 by slip protection ring 13.
See Fig. 2, slip protection ring 13 inside of the present utility model is provided with some steel balls 12, and slip protection ring 13 is contacted with guide pillar 5 and displacement transducer 3 by steel ball 12.
Displacement transducer 3 of the present utility model is contacted with upper bracket 9 by slip protection ring 13, and such displacement transducer remains vertical in moving process, can not be subject to the component of horizontal direction.
The utility model carries out according to following operation steps:
Step 1, the Water Tank with Temp.-controlled that marshal piece and pressurization bearing are placed in set point of temperature to be incubated;
Step 2, by insulation after marshal piece be placed in pressurization bearing in, pressurization bearing be placed on screw mandrel 11;
Step 3, start-up loading equipment, screw mandrel 11 drives pressurization bearing to move up with 50mm/min, and load application rami posterior superior seat 9 is contacted with guide pillar 5 by the steel ball 12 in slip protection ring 13 and moves;
Step 4, when marshal piece reach peak load destroy time, screw mandrel 11 stop move up, peak load is gathered by pressure transducer 2, flow valuve gathered by displacement transducer 3 and on controller 6 export.
In the present embodiment, the movement of upper bracket 9 is rolled by steel ball 12 and is realized on guide pillar 5, steel ball 12 is very little with the friction of guide pillar 5, so just effectively decrease the friction of upper bracket and guide pillar, thus reduction experimental error, also well can reduce equipment because using the wearing and tearing caused for a long time.
Claims (5)
1. a Marshall stability apparatus, it is characterized in that: comprise cabinet (7) and be installed on the screw mandrel (11) that cabinet (7) is connected with driving mechanism and the column (4) be fixed on cabinet (7), column (4) is provided with the crossbeam (1) of lower end with pressure transducer (2), the pressurization bearing be connected with screw mandrel (11) is provided with immediately below described pressure transducer (2), described pressurization bearing comprises the upper bracket (9) and undersetting (10) that are provided with displacement transducer (3), upper bracket (9) is connected with undersetting (10) by the guide pillar (5) be fixed on undersetting (10), slip protection ring (13) is provided with between described upper bracket (9) and guide pillar (5).
2. Marshall stability apparatus according to claim 1, is characterized in that: described displacement transducer (3) is vertically installed on upper bracket (9) by slip protection ring (13).
3. Marshall stability apparatus according to claim 1 and 2, is characterized in that: described slip protection ring (13) inside is provided with some steel balls (12).
4. Marshall stability apparatus according to claim 1, is characterized in that: described cabinet (7) is also provided with the controller (6) be connected with driving mechanism.
5. Marshall stability apparatus according to claim 1, is characterized in that: described guide pillar (5) is right cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996142.8U CN205175826U (en) | 2015-12-04 | 2015-12-04 | Marshall stability appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996142.8U CN205175826U (en) | 2015-12-04 | 2015-12-04 | Marshall stability appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205175826U true CN205175826U (en) | 2016-04-20 |
Family
ID=55739804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520996142.8U Expired - Fee Related CN205175826U (en) | 2015-12-04 | 2015-12-04 | Marshall stability appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205175826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404542A (en) * | 2016-12-01 | 2017-02-15 | 山东路达试验仪器有限公司 | Asphalt mixture Marshall stability tester |
-
2015
- 2015-12-04 CN CN201520996142.8U patent/CN205175826U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404542A (en) * | 2016-12-01 | 2017-02-15 | 山东路达试验仪器有限公司 | Asphalt mixture Marshall stability tester |
| CN106404542B (en) * | 2016-12-01 | 2023-08-25 | 山东路达试验仪器有限公司 | Marshall stability tester for asphalt mixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20161204 |